文本阅读:
响度的测量l0
书中给出的算法是一样的,只不过门函数避免了节目编排超出目标电平。实际响度读数包括了长期、短期和瞬时响度读数(更详细的内容请参见第14章"响度表"部分)。
23 LUFS
LU
门处理
电平
图107EBU一起始门函数
10.6参考文献
Zwicker,E.Ein Verfahren zur Berechnung der Lautstarke(a procedure for calculating loudness),Acustica,vol 10,pp 304-308
ANSI 53.4-1980(R1997)Procedures for the computation of loudness of noise Moore,BCJ,Peters,R W,and Glasberg,B.R.A revision of Zwicker's loudness model.
Acta Acoustica,vol.82,pp.335-345
ISO 532:1975.Acoustics-Method for calculating loudness level ITU-R BS 1770(2006)Algorithms to measure audio programme loudness and true peak audio level
EBU Recommendation R 128(2010).Loudness normalisation and permitted maximum level of audio levels Skovenborg,E,Nielsen,S Evaluation of different loudness models with music and Speech material.AES 117th Conv.2004.Preprint 6234
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